353530341042421 has 2 divisors, whose sum is σ = 353530341042422. Its totient is φ = 353530341042420.

The previous prime is 353530341042383. The next prime is 353530341042449. The reversal of 353530341042421 is 124240143035353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 349780289427396 + 3750051615025 = 18702414^2 + 1936505^2 .

It is an emirp because it is prime and its reverse (124240143035353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 353530341042421 - 2²⁷ = 353530206824693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (353530341042491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176765170521210 + 176765170521211.

It is an arithmetic number, because the mean of its divisors is an integer number (176765170521211).

Almost surely, 2^{353530341042421} is an apocalyptic number.

It is an amenable number.

353530341042421 is a deficient number, since it is larger than the sum of its proper divisors (1).

353530341042421 is an equidigital number, since it uses as much as digits as its factorization.

353530341042421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 40.

Adding to 353530341042421 its reverse (124240143035353), we get a palindrome (477770484077774).

The spelling of 353530341042421 in words is "three hundred fifty-three trillion, five hundred thirty billion, three hundred forty-one million, forty-two thousand, four hundred twenty-one".